US854135A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1906-05-11
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Granted: 1907-05-21
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Expires: 1926-05-11
Abstract
No abstract record available.
Inventors
- 👤 John R Whittemore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:15
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B01; B01D; B01D2239/00; B01D2239/04; B01D2239/0407; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24636; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/31504; Y10T428/31652; Y10T428/31656
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1910-05-20 | 1910-11-19 | 1911-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-05-20 | 1914-11-19 | 1915-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-05-20 | 1918-11-19 | 1919-05-21 | $7700.00 | Window Closed / Lapsed |